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Research budget increase since 10 years ago?
There was also research in last 2 years where it was shown possible to make such fuel cell without rare materials and I believe research is focusing to improving that these days.
I'm not too concerned about it taking off, at least if I can get one into my basement.
What I'm interested in is that if it would be possible to make enough large that it is feasible to build one by yourself, that might be something interesting to keep eyes on in future. Some did say that one can't make even batteries at home, but surely that is perfectly possible.
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